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公开(公告)号：US20200348459A1
公开(公告)日：2020-11-05
申请号：US16931151
申请日：2020-07-16
发明人： Juwon SEO , Wontaek SEO , Geeyoung SUNG , Changkun LEE , Hongseok LEE , Jaeseung CHUNG
摘要： A holographic display apparatus for providing an expanded viewing window includes a spatial filter configured to separate a plurality of holographic images generated by the hologram pattern displayed on the spatial light modulator from a plurality of lattice spots generated by a physical structure of the spatial light modulator. The spatial filter includes a plurality of color filters or a plurality of dichroic mirrors separating a first color image, a second color image, and a third color image from a first color lattice spot, a second color lattice spot, and a third color lattice spot.
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2.发明申请公开(公告)号：US20180210130A1
公开(公告)日：2018-07-26
申请号：US15870291
申请日：2018-01-12
发明人： Sunghoon LEE , Joonyong PARK , Dongouk KIM , Jihyun BAE , Bongsu SHIN , Dongsik SHIM , Jaeseung CHUNG
摘要： An input coupler includes: a plurality of semi-reflectors located along an optical path along which a light incident from a light source travels, each of the plurality of semi-reflectors comprising a reflective surface that is inclined with respect to the optical path and configured to reflect a first portion of the light and transmit a second portion of the light; and a plurality of optical path changing members configured to change an optical path of the light transmitted through the plurality of semi-reflectors, wherein the plurality of semi-reflectors and the plurality of optical path changing members are arranged such that the light passing through at least one of the plurality of semi-reflectors and emitted in one direction has a linear beam distribution.
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公开(公告)号：US20180128962A1
公开(公告)日：2018-05-10
申请号：US15656349
申请日：2017-07-21
发明人： Hyunjoon KIM , Bongsu SHIN , Dongouk KIM , Joonyong PARK , Jihyun BAE , Dongsik SHIM , Sunghoon LEE , Jaeseung CHUNG , Seokho SONG
IPC分类号： F21V8/00
CPC分类号： G02B6/0061 , G02B6/0035 , G02B6/0036 , G02B6/005 , G02B6/0068
摘要： A directional backlight unit and an image display apparatus including the directional backlight unit are provided. The directional backlight unit includes at least one light source and a light guide plate that guides light emitted by the light source. An interval between grating patterns formed on the light guide plate satisfies at least one condition of a first range and a second range in order to minimize a spreading of light caused by the grating patterns.
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4.发明申请公开(公告)号：US20180113250A1
公开(公告)日：2018-04-26
申请号：US15440535
申请日：2017-02-23
发明人： Sunghoon LEE , Joonyong PARK , Bongsu SHIN , Dongouk KIM , Jihyun BAE , Dongsik SHIM , Jaeseung CHUNG
IPC分类号： F21V8/00 , G02F1/1335 , G02B5/30
CPC分类号： G02F1/133504 , G02B5/3058 , G02B6/005 , G02B6/0056 , G02F1/133528 , G02F2001/133548 , G02F2001/133626
摘要： A three-dimensional (3D) image display apparatus includes a directional backlight unit and a display panel. The 3D image display apparatus may include an absorptive wire grid polarizer in the directional backlight unit or the display panel, for minimizing a distance between a diffraction device of the directional backlight unit and a pixel of the display panel.
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公开(公告)号：US20170059961A1
公开(公告)日：2017-03-02
申请号：US15213792
申请日：2016-07-19
发明人： Joonyong PARK , Dongouk KIM , Hyunjoon KIM , Jihyun BAE , Alexander V. MOROZOV , Bongsu SHIN , Sunghoon LEE , Changsoo LEE , Jaeseung CHUNG
CPC分类号： G02F1/31 , G02B3/12 , G02B6/003 , G02B6/0051 , G02B6/0068 , G02B27/22 , G02B27/225 , G02F1/1323 , G02F1/1334 , G02F1/133621 , G02F1/136 , G02F1/29 , H04N13/00 , H04N13/305 , H04N13/359 , H04N13/398 , H04N2213/001
摘要： Provided are a lighting system, a backlight unit and a 3D image display apparatus including the backlight unit. The backlight unit includes: a lighting system configured to selectively output collimated light and diverging light, a diffraction device, and a light guide plate configured to guide the collimated light and the diverging light from the lighting system to the diffraction device. An exit direction of the collimated light from the diffraction device depends on at least one of an angle of incidence of the collimated light and the wavelength of the collimated light.
摘要翻译： 提供了一种照明系统，背光单元和包括背光单元的3D图像显示装置。 背光单元包括：被配置为选择性地输出准直光和发散光的照明系统，衍射装置和导光板，所述衍射装置和导光板被配置为将来自照明系统的准直光和发散光引导到衍射装置。 来自衍射装置的准直光的出射方向取决于准直光的入射角和准直光的波长中的至少一个。
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公开(公告)号：US20190025685A1
公开(公告)日：2019-01-24
申请号：US15883570
申请日：2018-01-30
发明人： Jaeseung CHUNG , Geeyoung SUNG , Hongseok LEE
摘要： Provided is a projection display apparatus that tracks a user's eye with an eye tracker and displays a high-resolution image at a position of the user's eye. The projection display apparatus includes an eye tracker configured to track an eye of a user; a projector configured to project an image; and a controller configured to control the projector, based on a position of the eye of the user obtained from the eye tracker, to perform a first operation to project a first portion of the image at a first resolution onto a first region with respect to the position of the eye of the user, and to perform one of a second operation to project a second portion of the image at a second resolution lower than the first resolution onto a second region excluding the first region, and a third operation to refrain from projecting the image in the second region.
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公开(公告)号：US20180129060A1
公开(公告)日：2018-05-10
申请号：US15654097
申请日：2017-07-19
发明人： Sunghoon LEE , Dongouk KIM , Joonyong PARK , Jihyun BAE , Hoon SONG , Bongsu SHIN , Dongsik SHIM , Jaeseung CHUNG
IPC分类号： G02B27/22 , F21V8/00 , G02F1/1335 , G02B5/18
摘要： A backlight unit for a three-dimensional (3D) image display includes a light guiding plate configured to guide light; a light source configured to emit the light to the light guiding plate; and a diffraction grating structure provided on a surface of the light guiding plate, the diffraction grating structure configured to diffract the light emitted from the surface of the light guiding plate, and including diffracting gratings having different heights.
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公开(公告)号：US20180101018A1
公开(公告)日：2018-04-12
申请号：US15720887
申请日：2017-09-29
发明人： Jaeseung CHUNG , Joonyong PARK , Dongouk KIM , Jihyun BAE , Dongsik SHIM , Sunghoon LEE , Bongsu SHIN , Seokho SONG
CPC分类号： G02B27/2214 , G02B5/1819 , G02B27/01 , G02B27/225 , H04N13/302 , H04N13/398
摘要： A light-field display device includes a screen, a grating pixel array, and an image generator. The image generator outputs light including three-dimensional (3D) image information. The grating pixel array is configured to diffract the light including the 3D image information in multiple directions, thereby forming a 3D image. The image generator outputs the light having the 3D image information to the screen at a predetermined angle.
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公开(公告)号：US20180059312A1
公开(公告)日：2018-03-01
申请号：US15404553
申请日：2017-01-12
发明人： Joonyong PARK , Bongsu SHIN , Dongouk KIM , Hyunjoon KIM , Jihyun BAE , Dongsik SHIM , Sunghoon LEE , Jaeseung CHUNG , Seokho SONG
IPC分类号： F21V8/00
CPC分类号： G02B6/0068 , G02B6/0038 , G02B6/0063
摘要： A double-sided glassless three-dimensional (3D) display apparatus including a backlight unit may include an light source unit configured to emit light to the front and the rear thereof by diffracting incident light, and first and second display devices configured to use the light emitted by the light source unit as light for a 3D image formation and to form the 3D image on both sides of the light source unit. The light source unit may include a light source portion configured to emit three lights that have three different respective wavelengths and a light guide panel configured to transmit the lights emitted by the light source portion to the first and second display devices.
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10.发明申请公开(公告)号：US20170212359A1
公开(公告)日：2017-07-27
申请号：US15269136
申请日：2016-09-19
发明人： Hyunjoon KIM , Joonyong PARK , Bongsu SHIN , Dongouk KIM , Jihyun BAE , Dongsik SHIM , SungHoon LEE , Jaeseung CHUNG , Seogwoo HONG
CPC分类号： G02B27/2214 , G02B6/005 , G03H1/0808 , G03H1/2294 , G03H2210/30 , G03H2226/02 , G06F17/142 , H04N13/31 , H04N13/32 , H04N13/351 , H04N13/356 , H04N13/366
摘要： A directional backlight unit, a three-dimensional (3D) image display apparatus, and a 3D image displaying method are provided. The directional backlight unit includes a light guide plate having an emission surface on which a plurality of grating elements including first and second groups of grating elements are provided. The plurality of grating elements are arranged such that light beams emitted from the first and second groups of grating elements commonly propagate through a plurality of pixel points and respectively form first and second groups of view points of which corresponding regions do not overlap with each other.
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